Patent US2670846A successfully refreshed from Google Patents.
US2670846A
Expired / Lapsed
US
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Apparatus for screening sugar beets and the like
Assignee: Individual
•
Filing: 1947-12-11
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Granted: 1954-03-02
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Expires: 1967-12-11
Abstract
No abstract record available.
Inventors
- 👤 George W Rienks
- 👤 Harold F Silver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:40
CPC Classifications
A; A01; A01D; A01D17/00; A01D17/06; B; B07; B07B; B07B1/00; B07B1/12; B07B1/14; B07B1/15; B07B1/155; Y; Y10; Y10S; Y10S209/00; Y10S209/931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US814346A
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US1524360A
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US1641777A
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US1699718A
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US1899737A
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US1941147A
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DE608375C
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US2257352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |